CN108831780B - Double-shaft mechanical interlocking device and interlocking method thereof - Google Patents
Double-shaft mechanical interlocking device and interlocking method thereof Download PDFInfo
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- CN108831780B CN108831780B CN201811007128.5A CN201811007128A CN108831780B CN 108831780 B CN108831780 B CN 108831780B CN 201811007128 A CN201811007128 A CN 201811007128A CN 108831780 B CN108831780 B CN 108831780B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 50
- 238000009434 installation Methods 0.000 claims description 15
- 230000009347 mechanical transmission Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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Abstract
The invention discloses a double-shaft mechanical interlocking device and an interlocking method thereof, wherein the device comprises an operation panel, a first operation cylinder, a second operation cylinder, a first driving arm, a signal conversion device, a second driving arm and a locking arm are arranged on the operation panel, a main shaft is arranged in the first operation cylinder, a grounding shaft is arranged in the second operation cylinder, a first inclined plane is arranged at the free end of the main shaft, a second inclined plane is arranged at the free end of the grounding shaft, a notch is arranged on the outer surface of the second operation cylinder, the signal conversion device drives the second driving arm, and the second driving arm drives the locking arm to rotate along the opening direction of the notch. The interlocking method adopts the double-shaft mechanical interlocking device to carry out interlocking control. The double-shaft mechanical interlocking device can perform motion conversion on driving information brought by an electric signal in a purely mechanical mode, complete interlocking driving from the electric signal, realize traditional and reliable mechanical interlocking, and perfect a control mechanism of the electric signal to the mechanical interlocking of a power supply switch.
Description
[ field of technology ]
The invention relates to the technical field of power supply switch control, in particular to a double-shaft mechanical interlocking device and an interlocking method of the device.
[ background Art ]
When the common power supply switch realizes the power supply switching-on and switching-off of a power supply circuit and the ground protection of circuit maintenance, corresponding mechanical operating mechanisms are needed to execute the action, and the switching-on and switching-off and the ground connection of the switch are executed by the corresponding operating mechanisms by using a main shaft or a ground shaft through manpower or other forces, so that the on-off of the power supply circuit and the ground connection of the equipment power supply circuit during the equipment maintenance are realized to protect the safety of maintenance operators.
To cooperate with the safety measures of the power supply: after the switch is powered by the main shaft, the grounding shaft cannot be operated; after the switch is opened through the main shaft, the grounding shaft can be operated to further perform grounding protection, and meanwhile, once the circuit is electrified, the grounding shaft cannot perform grounding protection operation so as to protect the electrified circuit and operators. Under normal conditions, all power supply switch operating mechanisms adopting two-axis operation are required to design and perfect the 'interlocking' mechanism. In general, the detection and locking of the electrification state of the loop or the interlocking are not directly designed on the operation shaft, but are independently designed on the cabinet door by using an electromagnetic lock, so that the locking which cannot be accessed is indirectly realized.
At present, when an interlocking relation between a grounding switch and a charged state is realized in the market, similar devices can realize the design of realizing interlocking processing from an electric signal to mechanical transmission, but the interlocking devices have complex structures, and a structural system under the control of an interlocking mechanism is provided with electronic devices, so that a backup power supply system is required to support, and the failure rate or the misjudgment probability under the interlocking mechanism is increased. However, even the existing configuration is abandoned and put into use by the practical application, but the practical application is realized by adopting a method of combining the combination of the electrification display of the switch cabinet door and the research and judgment of the electrification state of the electromagnetic lock by adding the manual padlock.
Therefore, at present, no mechanical transmission structure which is simple in structure and directly converts an electric signal into an effective mechanical transmission structure is available on the market, and corresponding interlocking requirements are difficult to realize.
[ invention ]
The invention mainly aims to provide a double-shaft mechanical interlocking device which can convert driving information brought by an electric signal in a pure mechanical mode so as to realize traditional and reliable mechanical interlocking.
The invention further aims to provide an interlocking method of the double-shaft mechanical interlocking device, which can convert the driving information brought by the electric signals in a purely mechanical way, so as to realize the traditional and reliable mechanical interlocking.
In order to achieve the main purpose, the double-shaft mechanical interlocking device provided by the invention comprises an operation panel, wherein a first operation cylinder, a second operation cylinder, a first driving arm, a signal conversion device, a second driving arm and a locking arm are arranged on the operation panel, a main shaft is arranged in the first operation cylinder, a grounding shaft is arranged in the second operation cylinder, a first inclined plane is arranged at the free end of the main shaft, a second inclined plane is arranged at the free end of the grounding shaft, the first end of the first driving arm penetrates through the first operation cylinder and is abutted against the first inclined plane, the second end of the first driving arm penetrates through the second operation cylinder and is abutted against the second inclined plane, a notch is arranged on the outer surface of the second operation cylinder, the signal conversion device drives the second driving arm, and the second driving arm drives the locking arm to rotate along the opening direction of the notch.
Therefore, the main shaft realizes the transmission of basic mechanical force through the first operation cylinder arranged on the operation panel, and the grounding shaft realizes the transmission of mechanical force through the second operation cylinder arranged on the operation panel. When the signal conversion device is driven by a corresponding driving electric signal, the second driving arm stretches out to drive the locking arm to rotate clockwise, and the second end of the locking arm stretches into the second operation barrel to block the operation of the grounding shaft, so that a series of interlocking driving is realized.
Therefore, the electromagnet technology is formed through the signal conversion device, the conversion from the basic electric signal to the mechanical transmission is realized, the stable and effective traditional mechanical structure mode is fully utilized to realize a beneficial structural system for preventing misoperation, the backup low-voltage power supply is reduced to the greatest extent, the use of a complex electronic circuit device in an interlocking system device is thoroughly canceled, the risk of human misoperation caused by manually judging and monitoring whether a line to be overhauled is electrified can be avoided, the basic technology application for improving the safe operation and overhauling safety of a power supply switch can be perfected, the overhauling technology cost is reduced, and an automatic and simple-to-operate operation management mode is realized.
Further, the double-shaft mechanical interlocking device further comprises a first panel installation rod and a second panel installation rod, wherein the first panel installation rod is vertically installed on the operation panel, and the second panel installation rod is vertically installed on the operation panel.
It can be seen that the operation panel can realize the connection to other mechanical structures of power supply switch through first panel installation pole and second panel installation pole.
The middle part of the locking arm is provided with a through hole, the second panel mounting rod penetrates through the through hole and is vertically mounted on the operation panel, the first end of the locking arm is fixedly connected with the second driving arm, and the second end of the locking arm is driven by the second driving arm and rotates along the opening direction of the notch.
Still further, the operation panel is further provided with a support arm and a spring, a first end of the spring is fixedly connected to a second end of the locking arm, and the second end of the spring is fixedly connected to a hanging end of the support arm.
Therefore, if the signal conversion device does not receive the corresponding locking electric signal, the second driving arm cannot drive the locking arm positioned at the rotating pivot of the second panel mounting rod, so that the second end of the locking arm is pulled out of the second operation cylinder by the spring hung on the supporting arm, the locking arm rotates anticlockwise, the rotating operation blocking effect of the grounding shaft disappears, and the operation is free.
The signal conversion device comprises a driving power supply, an electromagnetic coil and an electric signal switch, wherein the driving power supply provides a switching power supply for the electric signal switch, and the electric signal switch is electrically connected with the electromagnetic coil.
Therefore, the signal conversion device can output switching value information of whether the power supply loop is electrified or not without the supply of an external power supply, after the switching value information is obtained, the electromagnetic technology is formed by combining an electrified electromagnetic coil, the conversion from an electric signal in an interlocking system to mechanical driving can be realized, and the electric signal is transmitted to a position where a mechanical structure is required by a second driving arm, and in the process, only a driving voltage source is needed to drive the electromagnetic coil to work.
In order to achieve the other object, the interlocking method of the double-shaft mechanical interlocking device provided by the invention comprises the following steps: if the signal conversion device is determined to receive the driving electric signal, the signal conversion device converts the driving electric signal into a mechanical transmission signal to drive the second driving arm, the second driving arm stretches out and drives the locking arm to rotate clockwise, and the second end of the locking arm stretches into the second operation barrel to block the operation of the grounding shaft; if it is determined that the signal conversion device does not receive the latching electrical signal, the latching arm is rotated counterclockwise, and the operation of the ground shaft is allowed.
Further, the double-shaft mechanical interlocking device further comprises a first panel installation rod and a second panel installation rod, wherein the first panel installation rod is vertically installed on the operation panel, and the second panel installation rod is vertically installed on the operation panel.
Still further, the middle part of the locking arm is provided with a through hole, the second panel installation rod penetrates through the through hole and is vertically installed on the operation panel, the first end of the locking arm is fixedly connected with the second driving arm, and the second end of the locking arm is driven by the second driving arm and rotates along the opening direction of the notch.
Still further, the operation panel is further provided with a support arm and a spring, a first end of the spring is fixedly connected to a second end of the locking arm, and the second end of the spring is fixedly connected to a hanging end of the support arm.
Further, if it is determined that the signal conversion device does not receive the locking electric signal, the second end of the locking arm is pulled out of the second operation barrel by the spring, and the locking arm is allowed to operate the grounding shaft after being rotated anticlockwise.
Therefore, the main shaft realizes the transmission of basic mechanical force through the first operation cylinder arranged on the operation panel, and the grounding shaft realizes the transmission of mechanical force through the second operation cylinder arranged on the operation panel. When the signal conversion device is driven by a corresponding driving electric signal, the second driving arm stretches out to drive the locking arm to rotate clockwise, and the second end of the locking arm stretches into the second operation barrel to block the operation of the grounding shaft, so that a series of interlocking driving is realized.
In addition, if the signal conversion device does not receive the corresponding locking electric signal, the second driving arm cannot drive the locking arm positioned at the rotating pivot of the second panel mounting rod, so that the second end of the locking arm is pulled out of the second operation cylinder by the spring hung on the supporting arm, the locking arm rotates anticlockwise, the rotating operation blocking effect of the grounding shaft is eliminated, and the operation is free.
[ description of the drawings ]
FIG. 1 is a schematic structural view of an embodiment of a biaxial mechanical interlock of the present invention.
Fig. 2 is a schematic structural view of the interlocking of the main shaft and the ground shaft in the embodiment of the biaxial mechanical interlocking device of the present invention.
Fig. 3 is a left side view of the spindle in an embodiment of the biaxial mechanical interlock of the present invention.
Fig. 4 is a left side view of the ground shaft in an embodiment of the dual-shaft mechanical interlock of the present invention.
Fig. 5 is a top view of a spindle in an embodiment of a biaxial mechanical interlock of the present invention.
Fig. 6 is a top view of a ground shaft in an embodiment of a dual-shaft mechanical interlock of the present invention.
Fig. 7 is a schematic diagram of a signal conversion device in an embodiment of a biaxial mechanical interlock of the present invention.
Fig. 8 is a schematic view of the structure of the latch arm in an embodiment of the biaxial mechanical interlock of the present invention.
[ detailed description ] of the invention
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Biaxial mechanical interlock embodiment:
referring to fig. 1 to 6, the biaxial mechanical interlocking device of the present invention includes an operation panel 1, a first operation tube 11, a second operation tube 12, a first driving arm 15, a signal conversion device 2, a second driving arm 22, and a locking arm 3 are provided on the operation panel 1, a main shaft 111 is provided in the first operation tube 11, and a grounding shaft 122 is provided in the second operation tube 12. Specifically, a first inclined plane 123 is disposed at a free end of the main shaft 111, a second inclined plane 112 is disposed at a free end of the grounding shaft 122, a first end of the first driving arm 15 penetrates through the first operating cylinder 11 and abuts against the first inclined plane 123, a second end of the first driving arm 15 penetrates through the second operating cylinder 12 and abuts against the second inclined plane 112, a notch is disposed on an outer surface of the second operating cylinder 12, the signal conversion device 2 drives the second driving arm 22, and the second driving arm 22 drives the locking arm 3 to rotate along an opening direction of the notch.
Referring to fig. 7, the signal conversion device 2 includes a driving power supply 23, an electromagnetic coil 21, and an electrical signal switch S1, the driving power supply 23 supplies a switching power supply to the electrical signal switch S1, and the electrical signal switch S1 is electrically connected to the electromagnetic coil 21. It can be seen that the signal conversion device 2 can output the switching value information of whether the power supply loop is electrified without the need of supplying an external power supply, and after the switching value information is obtained, the electromagnetic technology is formed by combining the electrified electromagnetic coil 21, so that the conversion from the electric signal to the mechanical driving in the interlocking system can be realized, and the electric signal is transmitted to the position where the mechanical structure is needed by the second driving arm 22, and in the process, only the driving power supply 23 is needed to drive the electromagnetic coil 21 to work.
The biaxial mechanical interlocking device further comprises a first panel mounting rod 13 and a second panel mounting rod 14, wherein the first panel mounting rod 13 is vertically mounted on the operation panel 1, and the second panel mounting rod 14 is vertically mounted on the operation panel 1. It can be seen that the operation panel 1 can be connected to other mechanical structures of the power switch by the first panel mounting bar 13 and the second panel mounting bar 14.
Referring to fig. 8, a through hole 33 is provided in the middle of the latch arm 3, and the second panel mounting rod 4 is vertically mounted on the operation panel 1 through the through hole 33, the first end 31 of the latch arm 3 is fixedly connected with the second driving arm 22, and the second end 32 of the latch arm 3 is driven by the second driving arm 22 and rotates along the opening direction of the notch.
The operation panel 1 is further provided with a support arm 4 and a spring 41, a first end of the spring 41 is fixedly connected to the second end 32 of the locking arm 3, and a second end of the spring 41 is fixedly connected to the hanging end of the support arm 4. It can be seen that if the signal conversion device 2 does not receive the corresponding locking electric signal, the second driving arm 22 cannot drive the locking arm 3 located at the pivot of the second panel mounting lever 14, so that the second end 32 of the locking arm 3 is pulled out of the second operating cylinder 14 by the spring 41 hung on the supporting arm 4, the locking arm 3 rotates anticlockwise, the rotation operation blocking effect of the grounding shaft 122 disappears, and the operation is free.
Specifically, after the signal conversion device 2 receives the driving electrical signal provided by the outside, the switching electrical signal provided by the electrical signal switch S1 after being turned on provides whether a closed loop for the electromagnetic coil 21 with the driving power supply 23 is electrified, the signal conversion device 2 converts the processed electrical signal into mechanical transmission to complete the front-stage driving of the double-shaft mechanical interlocking device, and the mechanical driving arm with the automatic reset spring is combined to realize the operation execution locking function of the grounding shaft.
When the condition is satisfied, only one of the operation axes can be subjected to the flow operation closing or opening operation, and the operation which does not conform to the interlocking flow cannot be performed simultaneously or under the condition that the condition is not satisfied. That is, when the main shaft 111 is in the working (closing) position, no operation can be performed on the ground shaft 122 regardless of whether the ground shaft 122 receives the mechanical driving electric signal or the locking signal of the signal conversion device 2, because there is a self-locking logic driving mechanical structure design between the main shaft 111 and the ground shaft 122; when the main shaft 111 is in the opening (non-working) state, if the signal conversion device 2 does not receive the corresponding driving electric signal, the mechanical interlocking structure outputting the driving electric signal is in an autonomous unlocking state (no electricity), that is, the loop to be grounded and closed cannot be electrified, the grounding and closing operation can be performed on the grounding shaft 122; otherwise (electricity is available) the grounding closing operation of the grounding shaft 122 cannot be performed, so that a mechanical interlocking structure driven by an electric signal without manual padlock and electricity verification intervention is realized.
The mechanical interlocking device for double shafts provided by the invention can realize traditional and reliable mechanical interlocking by simplifying mechanical interlocking between the main shaft 111 and the grounding shaft 122 and utilizing the electromagnetic coil technology of converting the existing electric signals into mechanical signals and converting driving information brought by the electric signals, such as locking information and closing information, so that an interlocking mechanism for automatically detecting and grounding shaft 122 in a driving electrified state can be realized, the grounding switch is forbidden to be operated, the electric signal to interlocking driving is completed, the opening of a manual padlock and the operation procedures of manual observation and monitoring are stopped, and the control mechanism for controlling the electric signal to the mechanical interlocking of the power supply switch is perfected.
Therefore, on the premise that the main shaft 111 and the grounding shaft 122 based on the power supply switch are mutually locked, a signal conversion device 2 with an auxiliary low-voltage power supply is added, the grounding closing operation of the grounding shaft 122 realizes the monitoring of automatically detecting whether a grounded loop is electrified, and if the grounded loop is electrified, the operation of the grounding shaft 122 is directly forbidden, so that the manual intervention of the conventional double-shaft power supply switch and the regulation safety risk brought by the management and control scheme of an external independent lockset are avoided.
As can be seen, the main shaft 111 transmits basic mechanical force through the first operating cylinder 11 provided on the operating panel 1, and the ground shaft 122 transmits mechanical force through the second operating cylinder 12 provided on the operating panel 1. When the signal conversion device 2 receives the corresponding driving electric signal, the second driving arm 22 extends to drive the locking arm 3 to rotate clockwise, and the second end of the locking arm 3 extends into the second operation barrel 12 to block the operation of the grounding shaft 122, so that a series of interlocking driving is realized.
Therefore, the electromagnet technology is formed through the signal conversion device 2, the conversion from the basic electric signal to the mechanical transmission is realized, the stable and effective traditional mechanical structure mode is fully utilized to realize a beneficial structural system for preventing misoperation, the backup low-voltage power supply is reduced to the greatest extent, the use of a complex electronic circuit device in an interlocking system device is thoroughly canceled, the risk of human misoperation caused by manually judging and monitoring whether a overhauled line is electrified can be avoided, the basic technology application for improving the safe operation and overhauling safety of a power supply switch can be perfected, the overhauling technology cost is reduced, and an automatic and simple operation management mode is realized.
Interlocking method embodiment of biaxial mechanical interlocking device:
in this embodiment, the interlocking method of the biaxial mechanical interlocking device includes: if it is determined that the signal conversion device 2 receives the driving electrical signal, the signal conversion device 2 converts the driving electrical signal into a mechanical transmission signal to drive the second driving arm 22, the second driving arm 22 extends and drives the locking arm 3 to rotate clockwise, and the second end 32 of the locking arm 3 extends into the second operation barrel 12 to block the operation of the grounding shaft 122; if it is determined that the signal conversion device 2 does not receive the latching electric signal, the latching arm 3 rotates counterclockwise, and the operation of the ground shaft 122 is allowed.
Wherein, if it is determined that the signal conversion device 2 does not receive the latching electric signal, the second end 32 of the latching arm 3 is pulled out of the second operation barrel 12 by the spring 41, and the latching arm 3 is rotated counterclockwise, the operation of the ground shaft 122 is allowed.
In a specific application, a first driving arm 15 is disposed between the first operating cylinder 11 and the second operating cylinder 12, when the main shaft 111 and the grounding shaft 122 are placed in the first operating cylinder 11 and the second operating cylinder 12, as the free ends of the main shaft 111 and the grounding shaft 122 are respectively provided with corresponding inclined planes, when the main shaft 111 is rotated, the first inclined plane 123 of the main shaft 111 drives the first driving arm 15 to move towards the grounding shaft 122 with the second inclined plane 112, which is not rotated at the other side, and once the main shaft 111 completes operation driving, the corresponding inclined planes are rotated away from the normal corresponding positions according to the inherent mechanical operation angle of the power supply switch, so that the first driving arm 15 cannot return to the original positions, the grounding shaft 122 is blocked, and then the interlocking control of the main shaft 111 and the grounding shaft 122 under the interlocking control logic can be realized by means of the first driving arm 15.
In this embodiment, the interlocking method of the double-shaft mechanical interlocking device provided by the invention specifically includes: when the signal conversion device 2 detects the driving electric signal information, the driving electric signal is converted into mechanical transmission to complete the front-stage driving of the double-shaft mechanical interlocking device, whether a closed loop has electricity or not is detected, if no electricity exists, the closing operation of the grounding shaft 122 is allowed, when the closing operation of the grounding shaft 122 is performed, the main shaft 111 is closed, and the grounding shaft 122 is allowed to be operated, at the moment, the grounding shaft 122 is two operations of opening and closing, wherein when the grounding shaft 122 is opening operation, the main shaft 111 is allowed to be operated, the current state of the main shaft 111 is judged, and when the current state of the main shaft 111 is in a closing state, the closing operation of the grounding shaft 122 is allowed, and at the moment, the main shaft 111 is allowed to be operated; if the current state of the main shaft 111 is the brake-off state, the operation of the grounding shaft 122 is allowed;
after the grounding shaft 122 is switched on, whether the closed loop has electricity or not is detected, if not, the switching on operation of the grounding shaft 122 is continuously allowed.
In the above step, when it is detected that the integrated circuit is powered on, the ground shaft 122 is locked, the operation of the main shaft 111 is allowed, and the current state of the main shaft 111 is continuously determined.
Meanwhile, when the control logic satisfies the interlocking between the main shaft 111 and the grounding shaft 122, and once the grounding shaft 122 is to be closed, if the signal conversion device 2 does not receive the corresponding locking electric signal, the second driving arm 22 cannot drive the locking arm 3, so that the second end 32 of the locking arm 3 is pulled out of the second operation barrel 12 by the spring 41 hung on the supporting arm 4, the locking arm 3 rotates anticlockwise, the rotation operation blocking effect of the grounding shaft 122 disappears, and the operation is free.
When the signal conversion device 2 receives the corresponding driving electric signal, the second driving arm 22 extends to drive the locking arm 3 to rotate clockwise, and the second end 32 of the locking arm 3 extends into the second operation barrel 12 to block the operation of the grounding shaft 122, so that the interlocking driving of the interlocking method in the embodiment is realized.
Obviously, the completion of the interlocking method of the locking control logic is basically completed by the double-shaft mechanical interlocking device without manual intervention, so that the automatic control under the safety regulation requirements of the main shaft on-off switch and the grounding switch on-off switch of the double-shaft power supply switch can be realized, and meanwhile, the double-shaft mechanical interlocking device does not need a complex electronic circuit or support of a high-stability voltage source, and under a reasonable mechanical structure, the manual unlocking without a driving voltage source can be completely realized.
Therefore, the main shaft 111 transmits basic mechanical force through the first operation tube 11 provided on the operation panel 1, and the ground shaft 122 transmits mechanical force through the second operation tube 11 provided on the operation panel 1. When the signal conversion device 2 receives the corresponding driving electric signal, the second driving arm 22 extends to drive the locking arm 3 to rotate clockwise, and the second end 32 of the locking arm 3 extends into the second operation barrel 12 to block the operation of the grounding shaft 122, so that a series of interlocking driving is realized.
In addition, if the signal conversion device 2 does not receive the corresponding locking electric signal, the second driving arm 22 cannot drive the locking arm 3 located at the pivot of the second panel mounting lever 14, so that the second end 32 of the locking arm 3 is pulled out of the second operation barrel 12 by the spring 41 hung on the supporting arm 4, the locking arm 3 rotates counterclockwise, the rotation operation blocking effect of the grounding shaft 122 disappears, and the operation is free.
It should be noted that the foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made to the present invention by using the concept fall within the scope of the present invention.
Claims (5)
1. Double-shaft mechanical interlocking device, characterized by comprising:
the device comprises an operation panel, wherein a first operation cylinder, a second operation cylinder, a first driving arm, a signal conversion device, a second driving arm and a locking arm are arranged on the operation panel, a main shaft is arranged in the first operation cylinder, a grounding shaft is arranged in the second operation cylinder, a first inclined plane is arranged at the free end of the main shaft, a second inclined plane is arranged at the free end of the grounding shaft, the first end of the first driving arm penetrates through the first operation cylinder and is abutted to the first inclined plane, the second end of the first driving arm penetrates through the second operation cylinder and is abutted to the second inclined plane, a notch is formed in the outer surface of the second operation cylinder, the signal conversion device drives the second driving arm, and the second driving arm drives the locking arm to rotate along the opening direction of the notch;
interlocking the double-shaft mechanical interlocking device, wherein the method comprises the following steps of:
the first driving arm is arranged between the first operation cylinder and the second operation cylinder, and after the main shaft and the grounding shaft are placed in the first operation cylinder and the second operation cylinder, the free ends of the main shaft and the grounding shaft are respectively provided with a corresponding inclined plane;
if the signal conversion device is determined to receive the driving electric signal, the signal conversion device converts the driving electric signal into a mechanical transmission signal to drive a second driving arm, the second driving arm stretches out and drives a locking arm to rotate clockwise, and the second end of the locking arm stretches into a second operation cylinder to block the operation of the grounding shaft; after the signal conversion device detects the driving electric signal information, the driving electric signal is converted into mechanical transmission to finish the front-stage driving of the double-shaft mechanical interlocking device, whether a closed loop has electricity or not is detected, if no electricity exists, the closing operation of a grounding shaft is allowed, after the closing operation of the grounding shaft, the main shaft is blocked and the grounding shaft is allowed to operate, at the moment, the grounding shaft is in two operations of opening and closing, wherein, after the grounding shaft is in the opening operation, the main shaft is allowed to operate, the current state of the main shaft is judged, if the current state of the main shaft is in the closing state, the operation of the grounding shaft is blocked, and at the moment, the main shaft is allowed to operate; if the current state of the main shaft is a brake-separating state, the grounding shaft is allowed to operate; meanwhile, after the control logic meets the interlocking between the main shaft and the grounding shaft, once the grounding shaft is required to be closed, if the signal conversion device is determined to not receive a locking electric signal, the second driving arm cannot drive the locking arm, so that the second end of the locking arm is pulled out of the second operation cylinder by a spring hung on the supporting arm, the locking arm rotates anticlockwise, the rotation operation blocking effect of the grounding shaft is eliminated, and the operation is free;
if it is determined that the signal conversion device does not receive the locking electric signal, the second driving arm cannot drive the locking arm located at the rotation pivot of the second panel mounting rod, so that the second end of the locking arm is pulled out of the second operation barrel by the spring, and after the locking arm rotates anticlockwise, the operation on the grounding shaft is allowed.
2. The biaxial mechanical interlock of claim 1 wherein:
the double-shaft mechanical interlocking device further comprises a first panel installation rod and a second panel installation rod, wherein the first panel installation rod is vertically installed on the operation panel, and the second panel installation rod is vertically installed on the operation panel.
3. The biaxial mechanical interlock according to claim 2 wherein:
the middle part of the locking arm is provided with a through hole, the second panel mounting rod penetrates through the through hole and is vertically mounted on the operation panel, the first end of the locking arm is fixedly connected with the second driving arm, and the second end of the locking arm is driven by the second driving arm and rotates along the opening direction of the notch.
4. A biaxial mechanical interlock according to claim 3 wherein:
the operation panel is also provided with a supporting arm and a spring, the first end of the spring is fixedly connected with the second end of the locking arm, and the second end of the spring is fixedly connected with the hanging end of the supporting arm.
5. The biaxial mechanical interlocking device according to any one of claims 1 to 4 wherein:
the signal conversion device comprises a driving power supply, an electromagnetic coil and an electric signal switch, wherein the driving power supply provides a switching power supply for the electric signal switch, and the electric signal switch is electrically connected with the electromagnetic coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811007128.5A CN108831780B (en) | 2018-08-31 | 2018-08-31 | Double-shaft mechanical interlocking device and interlocking method thereof |
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| CN201811007128.5A CN108831780B (en) | 2018-08-31 | 2018-08-31 | Double-shaft mechanical interlocking device and interlocking method thereof |
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| CN108831780A CN108831780A (en) | 2018-11-16 |
| CN108831780B true CN108831780B (en) | 2024-02-23 |
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| CN208548281U (en) * | 2018-08-31 | 2019-02-26 | 广东绿网新能源科技有限公司 | Twin-shaft machinery interlock |
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| JP2006081267A (en) * | 2004-09-08 | 2006-03-23 | Mitsubishi Electric Corp | Interlock device of closed distribution board |
| CN201032613Y (en) * | 2007-02-16 | 2008-03-05 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device for switching equipment |
| CN102473537A (en) * | 2009-07-01 | 2012-05-23 | Abb技术股份公司 | Multi-phase medium voltage contactor |
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| CN202167781U (en) * | 2011-08-22 | 2012-03-14 | 新疆昆仑电气有限公司 | Latching electromagnet protective device for a switch cabinet grounding switch hole valve |
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| CN106024490A (en) * | 2016-08-05 | 2016-10-12 | 国家电网公司 | Electromagnet locking grounding switch rotating shaft device and working method thereof |
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|---|---|
| CN108831780A (en) | 2018-11-16 |
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